nv50: handle pure integer vertex attributes

And as a side effect fix a crash in the following piglit test:
general/attribs GL3

Signed-off-by: Emil Velikov <[email protected]>
Cc: "9.2 and 9.1" [email protected]

1 files changed, 11 insertions, 1 deletions

diff --git a/src/gallium/drivers/nv50/nv50_vbo.c b/src/gallium/drivers/nv50/nv50_vbo.c
index db4e0cd3346..ca46f6c2661 100644
--- a/src/gallium/drivers/nv50/nv50_vbo.c
+++ b/src/gallium/drivers/nv50/nv50_vbo.c
@@ -140,10 +140,20 @@ nv50_emit_vtxattr(struct nv50_context *nv50, struct pipe_vertex_buffer *vb,
    const void *data = (const uint8_t *)vb->user_buffer + ve->src_offset;
    float v[4];
    const unsigned nc = util_format_get_nr_components(ve->src_format);
+   const struct util_format_description *desc =
+      util_format_description(ve->src_format);
 
    assert(vb->user_buffer);
 
-   util_format_read_4f(ve->src_format, v, 0, data, 0, 0, 0, 1, 1);
+   if (desc->channel[0].pure_integer) {
+      if (desc->channel[0].type == UTIL_FORMAT_TYPE_SIGNED) {
+         desc->unpack_rgba_sint((int32_t *)v, 0, data, 0, 1, 1);
+      } else {
+         desc->unpack_rgba_uint((uint32_t *)v, 0, data, 0, 1, 1);
+      }
+   } else {
+      desc->unpack_rgba_float(v, 0, data, 0, 1, 1);
+   }
 
    switch (nc) {
    case 4: